Gas Exchange in Humans

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Epiglottis
Stops food going into your lungs
1 of 14
Larynx
Voice box
2 of 14
Trachea
Lets air pass through us
3 of 14
Bronchus
Carries air to lungs
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Bronchioles
Carries air to the lungs
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Alveoli
Tiny air sacs designed for gas exchange
6 of 14
Diaphragm
Sheet of muscle with fibrous middle part which is domed: it helps makes breathing movement and separates the thorax from the lungs
7 of 14
Ribs
Bones that protect and ventilate lungs
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Internal Intercostal Muscles
Pull ribs down and in when you breath out
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External Intercostal Muscles
Pull ribs up and out when you breath in
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Pleural Membranes
Thin moist membranes forming air tight seal around lungs and separating inside of the thorax from the lungs
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Pleural Fluid
Liquid filling pleural cavity and acting a lubrication, so surfaces of lungs do not stick to inside of chest wall
12 of 14
Oesophagus
Carries food to the stomach
13 of 14
Nasal Passages
Warm, clean and adds moisture to the air
14 of 14

Other cards in this set

Card 2

Front

Voice box

Back

Larynx

Card 3

Front

Lets air pass through us

Back

Preview of the back of card 3

Card 4

Front

Carries air to lungs

Back

Preview of the back of card 4

Card 5

Front

Carries air to the lungs

Back

Preview of the back of card 5
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